Why isn't Aisik Hirschfeld's Yahrzeit Exact?

We do not know the exact date of death of Aisik Hirschfeld. According to Jewish tradition, if the exact date of death is not known, the yahrzeit of a person can be observed on any day, as long as it is that same day every year. Since that is the case, we observe the yahrzeit of Aisik Hirschfeld on 18 Av. If you know the exact date of death of Aisik Hirschfeld, contact us via the contact page. Be sure to include the url: https://eachofushasaname.org/person/2103/Aisik_Hirschfeld.html